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authorMenglong Dong <menglong8.dong@gmail.com>2026-01-24 14:19:56 +0800
committerAlexei Starovoitov <ast@kernel.org>2026-01-24 18:49:35 -0800
commit2d419c44658f75e7655794341a95c0687830f3df (patch)
tree0b4ee620358c66e239a874ac9e08f339f69ab88a /net/core
parentc7900f225a102219f5fe2c1c93a7dec5467315ee (diff)
bpf: add fsession support
The fsession is something that similar to kprobe session. It allow to attach a single BPF program to both the entry and the exit of the target functions. Introduce the struct bpf_fsession_link, which allows to add the link to both the fentry and fexit progs_hlist of the trampoline. Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Co-developed-by: Leon Hwang <leon.hwang@linux.dev> Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Link: https://lore.kernel.org/r/20260124062008.8657-2-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/bpf_sk_storage.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/bpf_sk_storage.c b/net/core/bpf_sk_storage.c
index 850dd736ccd1..de111818f3a0 100644
--- a/net/core/bpf_sk_storage.c
+++ b/net/core/bpf_sk_storage.c
@@ -365,6 +365,7 @@ static bool bpf_sk_storage_tracing_allowed(const struct bpf_prog *prog)
return true;
case BPF_TRACE_FENTRY:
case BPF_TRACE_FEXIT:
+ case BPF_TRACE_FSESSION:
return !!strncmp(prog->aux->attach_func_name, "bpf_sk_storage",
strlen("bpf_sk_storage"));
default: